WORLD BUSINESS BRIEFING: EUROPE; EURO'S WEAKNESS CHALLENGED

Jean-Claude Trichet, the Bank of France governor, said that financial markets were making ''a flagrant underestimation'' of the euro's value against the dollar. Speaking in a television interview, Mr. Trichet said the euro's current weakness was typical of periods when financial markets wrongly valued currencies. Mr. Trichet said the economic fundamentals of the euro-zone warrant a much stronger euro, and like the dollar in 1994, a turnaround in its fortunes could be sudden and would happen soon.